CN104793964B - Java cards and its application update method, the terminal applied to java cards, smart card system - Google Patents
Java cards and its application update method, the terminal applied to java cards, smart card system Download PDFInfo
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- CN104793964B CN104793964B CN201410021220.2A CN201410021220A CN104793964B CN 104793964 B CN104793964 B CN 104793964B CN 201410021220 A CN201410021220 A CN 201410021220A CN 104793964 B CN104793964 B CN 104793964B
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Abstract
The invention discloses a kind of java cards and its application update method, the terminal applied to java cards, smart card systems.The terminal includes：The java card platforms of read-only memory, java cards realize code mask in read-only memory, and the Applet applications of java cards realize that the function class libraries in code realizes code mask in read-only memory, and wherein function class libraries realizes that code includes multiple classes；The Applet applications of scratch pad memory, java cards realize that the application framework in code realizes that code is stored in scratch pad memory with erasable WriteMode, and wherein application framework realizes code for calling class；Bus, read-only memory are electrically connected with bus respectively with scratch pad memory.By the above-mentioned means, the present invention can be updated mask in java cards in the application of read-only memory, user experience can be improved, and reduces update cost in bug present in the application to Efficient software patching java cards.
Description
Technical field
The present invention relates to information technology field, more particularly to a kind of java cards and its application update method are applied to java
The terminal of card, smart card system.
Background technology
Java cards are the smart cards that can run java program codes.Java cards are different from traditional smart card (Native
Card), it is divided into platform and Applet application two parts..
The storage system of smart card is mainly by read-write memory (RAM), read-only memory (ROM) and erasable programming
Memory (EEPROM) forms.Erasable programmable memory (EEPROM) capacity is small, of high cost, in contrast, read-only memory
(ROM) capacity is big, at low cost.Meanwhile the runtime data of java cards is all stored in EEPROM, it is big to EEPROM demands.Institute
With a lot of java cards development companies download it all in platform and Applet application masks to ROM to vacate more spaces now
He applies or storage data.
But due to can only read read-only memory, and it cannot be carried out it is erasable, therefore when mask in read-only storage
When the Applet applications of device have bug (defect), effectively it cannot be updated, to influence user experience, develop factory
Quotient can only replace read-only memory, so also so that the update cost of development company improves.
Invention content
The invention mainly solves the technical problem of providing a kind of java cards and its application update method, it is applied to java cards
Terminal, smart card system, mask in java cards can be updated in the application of read-only memory, to Efficient software patching
User experience can be improved in bug present in the application of java cards, and reduces update cost.
In order to solve the above technical problems, one aspect of the present invention is：There is provided a kind of application of java cards more
New method, java cards include：The java card platforms of read-only memory, java cards realize code mask in read-only memory, wherein
Java card platforms realize code for realizing standard Application Programming Interface and running environment, and encapsulate the intelligence where java cards
The hardware information of card system；The Applet applications of java cards realize that the function class libraries in code realizes code mask in read-only storage
Device, wherein function class libraries realize that code includes multiple classes；The Applet applications of scratch pad memory, java cards are realized in code
Application framework realizes that code is stored in scratch pad memory with erasable WriteMode, and wherein application framework realizes code for calling
Class；Bus, read-only memory are electrically connected with bus respectively with scratch pad memory；This method includes：Detecting function class libraries
When realizing that the class of code needs to be updated, the application framework realization code that scratch pad memory is stored in java cards is wiped；
It is mutually authenticated with java cards；New opplication frame is realized code and realized in code corresponding to function class libraries and needs to update
Class subclass be written scratch pad memory；
Wherein, realized in function class libraries in the subclass of the newer class of needs of code to need the method in newer class with
Coverage mode is written over.
Wherein, it is newer to realize that code is provided for stopping needing in calling function class libraries realization code for new opplication frame
Class, and realize the other classes and subclass in code in addition to needing newer class for calling function class libraries.
Wherein, scratch pad memory is FLASH memory or eeprom memory.
In order to solve the above technical problems, another technical solution used in the present invention is：A kind of java cards are provided, including：
The java card platforms of read-only memory, java cards realize code mask in read-only memory, and wherein java cards platform realizes code
For realizing standard Application Programming Interface and running environment, and encapsulate the hardware information of the smart card system where java cards；
The Applet applications of java cards realize that the function class libraries in code realizes code mask in read-only memory, and wherein function class libraries is real
Modern code includes multiple classes；The Applet applications of scratch pad memory, java cards realize that the application framework in code realizes code
It is stored in scratch pad memory with erasable WriteMode, wherein application framework realizes code for calling class；Bus, read-only memory
It is electrically connected respectively with bus with scratch pad memory.
Wherein, scratch pad memory is FLASH memory or eeprom memory.
In order to solve the above technical problems, another technical solution used in the present invention is：It provides a kind of applied to above-mentioned
The terminal of java cards, including：Class memory module corresponds in function class libraries realization code for needing newer class for storing
Class, and to needing the method in newer class to be written over coverage mode in subclass；Application framework realizes that code stores mould
Block realizes that code, wherein new opplication frame realize that code is provided for stopping calling function class for storing new opplication frame
Library, which is realized, needs newer class in code, and realizes other classes in code in addition to needing newer class for calling function class libraries
And subclass；Update module, for wiping the application framework realization code for being stored in scratch pad memory in java cards, and will be sub
Class, new opplication frame are realized in the scratch pad memory of code write-in java cards.
Wherein, terminal is POS machine or card reader.
In order to solve the above technical problems, another technical solution used in the present invention is：A kind of smart card system is provided, is wrapped
Include above-mentioned java cards and above-mentioned terminal.
The beneficial effects of the invention are as follows：Compared with prior art, java cards of the invention and its application update method, application
In the terminals of java cards, smart card system by will subclass, new opplication frame be realized that code be written into the erasable of java cards
In memory, and it is newer so that new opplication frame realizes that code is set as stopping needing in calling function class libraries realization code
Class, and calling function class libraries realizes the other classes and subclass in code in addition to needing newer class, therefore can be to java cards
Middle mask is updated in the application of read-only memory, and use can be improved in bug present in the application to Efficient software patching java cards
Family is experienced, and reduces update cost.
Description of the drawings
Fig. 1 is the structural schematic diagram of java cards first embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the Applet applications in java cards first embodiment of the present invention；
Fig. 3 is the hardware architecture diagram of java cards first embodiment of the present invention；
Fig. 4 is that java of the present invention is stuck in using updated structural schematic diagram；
Fig. 5 is the structural schematic diagram for the terminal first embodiment that the present invention is applied to java cards.
Specific implementation mode
The present invention is described in detail with embodiment below in conjunction with the accompanying drawings.
It is the structural schematic diagram of java cards first embodiment of the present invention referring firstly to Fig. 1, Fig. 1, as shown in Figure 1, this hair
Bright java cards 30 include that java platforms 40 and multiple Applet apply 50,60,70.
Java platforms 40 and encapsulate the intelligence where java cards 30 for realizing the Application Programming Interface and running environment of standard
The hardware information of energy card system.Applet applies mechanically unified application framework using 50,60,70, is provided using java platforms 40
Interface is developed with java language, calling system service and resource.
In order to more clearly illustrate, only Applet is illustrated using 50 in the examples below, please be join below
See that Fig. 2, Fig. 2 are the structural schematic diagrams of the Applet applications in java cards first embodiment of the present invention, as shown in Fig. 2, of the invention
Applet using 50 include application framework 501 and function class libraries 502, function class libraries 502 include multiple and different classes 5021,
5022、5023。
Application framework 501 can 502 each class of calling function class libraries member and method.
Fig. 3 is referred to below, and Fig. 3 is the hardware architecture diagram of java cards first embodiment of the present invention.As shown in figure 3,
The present invention java cards 30 include read-only memory 10, scratch pad memory 20 and bus 80, read-only memory 10 with it is erasable
Memory write 20 is electrically connected with bus 80 respectively.
It is worth noting that, java cards platform 40 shown in FIG. 1 realizes that code 101 is realized with java card platforms, java
Processor (not being painted) in card realizes the correspondence work(of java cards platform 40 by running java card platforms realization code 101
Energy.
Also, Applet shown in Fig. 2 is realized with Applet using code is realized using 50, the processor in java cards
The corresponding function of Applet applications is realized by running Applet applications realization code.Code tool is realized in wherein Applet applications
Body includes that function class libraries realizes that code 1022 and application framework realize code 1021.
In the present invention, the java card platforms of java cards 30 realize 101 mask of code in read-only memory 10, wherein java
Card platform realizes code 101 for realizing standard Application Programming Interface and running environment, and encapsulates the intelligence where java cards 30
The hardware information of energy card system；Java cards 30 Applet application realize code in function class libraries realize 1022 mask of code in
Read-only memory 10, wherein function class libraries realize that code 1022 includes multiple classes.
Also, the Applet applications of java cards 30 realize that the application framework in code realizes code 1021 with erasable WriteMode
It is stored in scratch pad memory 20, wherein application framework realizes that code 1021 is used to call the class in read-only memory 10.
Therefore, java cards 30 of the invention run mask by processor and are realized in the java card platforms of read-only memory 10
Code 101 realizes the corresponding function of java cards platform 40, and mask is run in the function class of read-only memory 10 by processor
Code 1022 is realized to realize the corresponding function of function class libraries 502 in library, runs that be stored in erasable WriteMode can by processor
The application framework of flash memory 20 realizes code 1021 to realize the corresponding function of application framework 501.
Based on the above setting, when finding to apply defective (bug) to some Applet, need to some Applet apply into
When row updates, only method shown in Fig. 3 need to be run, you can update quickly, safe is carried out to specific Applet applications.
Fig. 3 is referred to, Fig. 3 is the flow chart using update method first embodiment of java cards of the present invention.Such as Fig. 3 institutes
Show, the application update method of java cards of the present invention includes the following steps：
Step 301：When detecting that function class libraries realizes that the class of code needs to be updated, wipes and be stored in java cards
The application framework of scratch pad memory realizes code；
Step 302：It is mutually authenticated with java cards；
Step 303：New opplication frame is realized code and realized in code corresponding to function class libraries and needs newer class
Subclass be written scratch pad memory；
It is worth noting that, above-mentioned steps are executed by terminal.And in step 302, terminal can be with APDU
(Application Protocol Data Unit, Application Protocol Data Unit) mode is authenticated with java cards.
Also, realized in function class libraries in the subclass of the newer class of needs of code to need the method in newer class with
Coverage mode is written over.
Also, it is newer that new opplication frame realizes that code is provided for stopping needing in calling function class libraries realization code
Class, and realize the other classes and subclass in code in addition to needing newer class for calling function class libraries.
It is referred to together in combination with Fig. 4, wherein Fig. 4 is that java of the present invention is stuck in using updated structural schematic diagram.
Wherein subclass 90 realizes the subclass that newer class is needed in code 1022 for function class libraries, and newer to needing in subclass 90
Method in class is written over coverage mode, and new opplication frame realizes that code 1021 is set as stopping the realization of calling function class libraries
Newer class is needed in code 1022, and calling function class libraries realizes other classes in code 1022 in addition to needing newer class,
And subclass 90.
Since new opplication frame realizes that code 1021 is set as stopping needing more in calling function class libraries realization code 1022
New class, and calling function class libraries realizes the other classes and subclass 90 in code 1022 in addition to needing newer class, therefore,
When the processor operation new opplication frame of java cards 30 realizes code 1021, mask will not be called in the work(of readable memory 10
Newer class can be needed in class libraries realization code 1022, but directly invoke the subclass 90 for being stored in scratch pad memory 20.From
And realize the update of Applet applications.
It is worth noting that, the above-mentioned terminal that can be specifically applied to java cards by one using update method executes, java
Card can be inserted into terminal so that the terminal is connected with java cards, to carry out java cards using update.
Fig. 5 is referred to, Fig. 5 is the structural schematic diagram for the terminal first embodiment that the present invention is applied to java cards, specifically,
The terminal may include：
Class memory module 401 corresponds in function class libraries realization code the subclass for needing newer class for storing, and
To needing the method in newer class to be written over coverage mode in subclass；
Application framework realizes code storage block 402, and code, wherein new opplication frame are realized for storing new opplication frame
Realize that code is provided for stopping needing newer class in calling function class libraries realization code, and real for calling function class libraries
Other classes and subclass in modern code in addition to needing newer class；
Update module 403, for wiping the application framework realization code for being stored in scratch pad memory in java cards, and will
Subclass, new opplication frame are realized in the scratch pad memory of code write-in java cards.
Specifically, scratch pad memory can be FLASH memory or eeprom memory, and terminal can be POS machine or Card Reader
Device.
The present invention further provides a kind of smart card systems comprising the java cards and terminal disclosed in above-described embodiment.
Therefore, java cards of the invention and its application update method, the terminal applied to java cards, smart card system pass through
Subclass, new opplication frame will be realized that code is written into the scratch pad memory of java cards, and so that new opplication frame is real
Modern code is set as stopping needing newer class in calling function class libraries realization code, and calling function class libraries is realized and removed in code
Other classes and the subclass outside newer class are needed, therefore application that can be to mask in java cards in read-only memory carries out
Update, so that bug present in the application of Efficient software patching java cards, can be improved user experience, and reduce update cost.
Mode the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this
Equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content, it is relevant to be applied directly or indirectly in other
Technical field is included within the scope of the present invention.
Claims (9)
1. a kind of application update method of java cards, which is characterized in that the java cards include：
The java card platforms of read-only memory, the java cards realize code mask in the read-only memory, wherein described
Java card platforms realize code for realizing standard Application Programming Interface and running environment, and encapsulate the java cards place
The hardware information of smart card system；The java cards Applet application realize code in function class libraries realize code mask in
The read-only memory, wherein the function class libraries realizes that code includes multiple classes；
The Applet applications of scratch pad memory, the java cards realize that the application framework in code realizes code with erasable side
Formula is stored in the scratch pad memory, wherein the application framework realizes code for calling the class；
Bus, the read-only memory are electrically connected with the bus respectively with the scratch pad memory；
The method includes：
When detecting that the function class libraries realizes that the class of code needs to be updated, wipe described in being stored in the java cards
The application framework of scratch pad memory realizes code；
Terminal is mutually authenticated with the java cards；
New opplication frame, which is realized code and realized in code corresponding to the function class libraries, needs the subclass of newer class to write
Enter the scratch pad memory；
Wherein, the new opplication frame realizes that code is set as stopping calling needing more described in the function class libraries realization code
New class, and the function class libraries is called to realize other classes and subclass in code in addition to the newer class of needs.
2. according to the method described in claim 1, it is characterized in that, realizing the newer class of needs of code in the function class libraries
Subclass in needing the method in newer class to be written over coverage mode.
3. according to the method described in claim 2, it is characterized in that, the new opplication frame realizes that code is provided for stopping
It calls the function class libraries to realize and needs newer class in code, and for calling the function class libraries to realize in code except described
Need other classes outside newer class and the subclass.
4. method according to any one of claims 1 to 3, which is characterized in that the scratch pad memory stores for FLASH
Device or eeprom memory.
5. a kind of java cards, which is characterized in that including：
The java card platforms of read-only memory, the java cards realize code mask in the read-only memory, wherein described
Java card platforms realize code for realizing standard Application Programming Interface and running environment, and encapsulate the java cards place
The hardware information of smart card system；The java cards Applet application realize code in function class libraries realize code mask in
The read-only memory, wherein the function class libraries realizes that code includes multiple classes；
The Applet applications of scratch pad memory, the java cards realize that the application framework in code realizes code with erasable side
Formula is stored in the scratch pad memory, wherein the application framework realizes code for calling the class；
Bus, the read-only memory are electrically connected with the bus respectively with the scratch pad memory；
Terminal is used to, when detecting that the function class libraries realizes that the class of code needs to be updated, wipe and deposit in the java cards
The application framework for being stored in the scratch pad memory realizes code；It is mutually authenticated with the java cards；And by new opplication
Frame, which is realized code and realized corresponding to the function class libraries, needs the subclass write-in of newer class described erasable in code
Memory；
Wherein, the new opplication frame realizes that code is set as stopping calling needing more described in the function class libraries realization code
New class, and the function class libraries is called to realize other classes and subclass in code in addition to the newer class of needs.
6. java cards according to claim 5, which is characterized in that the scratch pad memory be FLASH memory or
Eeprom memory.
7. a kind of terminal applied to the java cards described in claim 5, which is characterized in that including：
Class memory module corresponds in the function class libraries realization code subclass for needing newer class for storing, and in institute
It states in subclass to needing the method in newer class to be written over coverage mode；
Application framework realizes code storage block, code is realized for storing new opplication frame, wherein the new opplication frame is real
Modern code is provided for stopping calling in the function class libraries realization code needing newer class, and for calling the function
Class libraries realizes other classes and the subclass in code in addition to the newer class of needs；
Update module, for wiping the application framework realization code for being stored in the scratch pad memory in the java cards, and
The subclass, the new opplication frame are realized that code is written in the scratch pad memory of the java cards.
8. terminal according to claim 7, which is characterized in that the terminal is POS machine or card reader.
9. a kind of smart card system, which is characterized in that including java cards described in claim 5 or 6 and claim 7 or 8
The terminal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410021220.2A CN104793964B (en) | 2014-01-16 | 2014-01-16 | Java cards and its application update method, the terminal applied to java cards, smart card system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410021220.2A CN104793964B (en) | 2014-01-16 | 2014-01-16 | Java cards and its application update method, the terminal applied to java cards, smart card system |
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| Publication Number | Publication Date |
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| CN104793964A CN104793964A (en) | 2015-07-22 |
| CN104793964B true CN104793964B (en) | 2018-10-02 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107729056A (en) * | 2017-10-26 | 2018-02-23 | 东信和平科技股份有限公司 | The program store method and relevant apparatus of a kind of read-only storage |
| CN108733487A (en) * | 2018-04-19 | 2018-11-02 | 深圳市文鼎创数据科技有限公司 | The more application management methods of Java card and Java card |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1535250A1 (en) * | 2002-07-01 | 2005-06-01 | Sospita AS | Process for compiling and executing software applications in a multi-processor environment |
| CN101441568A (en) * | 2008-11-18 | 2009-05-27 | 东信和平智能卡股份有限公司 | Smart card and operating system developing method thereof |
| CN103309696A (en) * | 2012-03-15 | 2013-09-18 | 中国移动通信集团公司 | Method and device for updating Java card extended library, and Java card |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19964003A1 (en) * | 1999-12-30 | 2001-07-12 | Micronas Gmbh | Circuit arrangement and method for generating and reading out replacement data |
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2014
- 2014-01-16 CN CN201410021220.2A patent/CN104793964B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1535250A1 (en) * | 2002-07-01 | 2005-06-01 | Sospita AS | Process for compiling and executing software applications in a multi-processor environment |
| CN101441568A (en) * | 2008-11-18 | 2009-05-27 | 东信和平智能卡股份有限公司 | Smart card and operating system developing method thereof |
| CN103309696A (en) * | 2012-03-15 | 2013-09-18 | 中国移动通信集团公司 | Method and device for updating Java card extended library, and Java card |
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| CN104793964A (en) | 2015-07-22 |
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